Method for transferring wireless power
First Claim
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1. A method for transferring wireless power using a wireless power transmission apparatus, the method comprising:
- transmitting a power transfer request packet to at least one wireless charging device during a request period;
receiving a power transfer response packet from the at least one wireless charging device during a response period;
transmitting, during the response period, a power transfer beacon request packet comprising information on a wireless power transfer schedule to the at least one wireless charging device in response to receiving the power transfer response packet; and
transmitting wireless power to the at least one wireless charging device according to the wireless power transfer schedule during the response period,wherein the transmitting the power transfer beacon request packet comprises;
dividing the response period into at least one time slot based on a number of the at least one wireless charging device; and
generating the wireless power transfer schedule assigning the at least one time slots to the at least one wireless charging device.
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Abstract
This invention defines management protocols for wireless power transfer to multiple devices in Multi-device Wireless Power Management System. Various functions of Multi-device Wireless Power Management System are justified from this invention. The WPT frames and messages which work between the management block of a charger and the management block or the coupler block of a device, or the coupler block of a charger are defined as well to execute various functions. Also the procedures for each functionality are described based on its frames and messages.
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Citations
7 Claims
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1. A method for transferring wireless power using a wireless power transmission apparatus, the method comprising:
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transmitting a power transfer request packet to at least one wireless charging device during a request period; receiving a power transfer response packet from the at least one wireless charging device during a response period; transmitting, during the response period, a power transfer beacon request packet comprising information on a wireless power transfer schedule to the at least one wireless charging device in response to receiving the power transfer response packet; and transmitting wireless power to the at least one wireless charging device according to the wireless power transfer schedule during the response period, wherein the transmitting the power transfer beacon request packet comprises; dividing the response period into at least one time slot based on a number of the at least one wireless charging device; and generating the wireless power transfer schedule assigning the at least one time slots to the at least one wireless charging device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification